Can-heading machine



I May 1, 1923. 1,453,619

A.CALLESON CAN HEADING MACHINE Filed April 21, 1921 6 Sheets-Sheet l WITNESS '4 TTORNEY May 1, 1923. 1,453,61.9

A. CALLESON CAN HEADING MACHINE Filed April 21. 1921 6 Sheets-Sheet 2 gi 1 16. Q

I I II I A TTOR/VEY May I, 1923.

A. CALLESON CAN HEADING MACHINE Filed April 21 1921 WITNESS 6 Sheets-Sheet 5 May 1, 1923. 1,453,619

- A. CALLESON 'CAN HEADING MACQHINE I 6 Sheets-Sheet 4 Filed April 21 1921 W". f I

May 1, 1923.

A. CALLESON CAN HEADING MACHINE Filed April 21. 1921 6 Sheets-Sheet 5 I (meson.

IAIVEI'VTOR Arm/mu- May I,

A. CALLESQN CAN .HEADING MACHINE Filed April 21 1921 I I i L J I! I I 41 v 45 45 m 1hr 6 Shets-Sheet Patented May 1, 1923.

UNITE YES are-Ni" orric mos GALLESON, or BROOKLYN, NEW YORK.

CAN-HEADING MACHINE.

Application filed April 21, 1921. Serial No. 463,337.

7 T 0 all whom it may concern erationtocontainers, as cans, or for, performing work of substantially that nature, and to that particular class of such machines in which on an axis extending through the work relative rotation is elfected as between the work holding means and carrier means for the seaming or shaping means, which latter includes a guiding member movable in the carrier means and controlled by a camway extending around the holding means and a shaping member or tool movable in the guiding member, both members being movable in rectilincal, preferably radial, paths. In this class of machines it is common to provide a clutch for disconnectively.

connecting with adrive shaft or equivalent the mechanism which is operative more or less directly 'in the shaping of the work, as seaming, and .also to provide for thrust movement of means operative in holding the work properly positioned while being operated upon. bjects' of my invention are to provide a seaming machine in which angular as well as round work can be operated ppon with better results in the product, especially with respect to uniformity of pressure of the seaming instrumentalities and regardless of angles in the work, and to improve the control of the aforesaid clutch or clutching means and thrustwise movable means, especially with a view to lighten the labor of the attendant and simplify the operations incident to the general control of the machine.

Figure 4:, wi h certain part removed;

Figures 6 and 7 are plan views of the annular heads of certain plungers;

Figure '8 is a lan, partly in section, of thelower' part of one of the guiding'members, with the corresponding shaping member assembled therewith;

. Figure 9 isa side elevation, partly in section, of said shaping member and a portion of its actuating means; 4

Figure 10 is a longitudinal sectional view of said part; v

Figures -11 and 12 show in side elevation and in section, on line 12-12, Figure 1, certain parts appearing in'Fi ure 1;

Figure. 13 is a detail 0 the stop motion means'involved in the actuation of the shaping members; I

igure 1' is a front elevation, partly in section, of substantially what is shown in Figure 4 and including a modification of the megns for actuating the shaping members; an

Figure 15 shows inplan, partly in section, what is shown in Figure 114:;

Figure 16 are profiles of the'knurls and the forms they'respectively impart to the can and head edges;

Figure 17 shows the cams 32 in profile;

Figure 18 shows in sideelevation a'modification of the means for controlling thetwo shaping means;

Figure 19 is a plan and Figure .20 an en- 'laiigedsection of what is showninEigure'l8;

igure 21 is a side elevation", partly in section, of lever 45 in Figure 18 and Figure '22 a transverse section thereof; and

Figure 23 shows the cam foractuating the shaping means in Figure 18. i

The frame of the machine includes an upright a surmounted by a head I) which overhangs a bracket 0 bolted to the front of the upright and equipped- With two superposed arms in which slides the spindle d of the work supporge, A designating a can restin on said support and B a headon the can which is to be aflixed thereto by an edgeseaming unlock-seaming. operation. In the. head I) is secured by screws 7 a post 9, to the lower end of which, by a long screw it extending through the post, a chuck i is secured non-rotatively; as will appear, when the chuck is to be changed for another it may be removed by detaching the screw therefrom. The chuck has a cam groove '5,

open downwardly, whichconforms to the general shape in plan of the work, and a downwardly depending chuck-proper i Post 5 has at its lower end a flange g and so formsa bearing support for the aforesaid carrier means or carrier which is a disk j having diametrically opposite apertures j and an upstanding hub 70 abutting head 6 and also having a depending flange Z forming a housing at the lower side of the disk. The disk also has a series of spaced upstanding rests m on which is suitably secured an annular bevel gear n.

Pairs of diametrically opposite and radial ways are formed in the carrier, to wit, at the under side of the disk and in a pair of parallel, vertical walls 7); guideways including these ways are formed between the walls 7), as shown in dotted outline in Figure 3 and in full lines in Figure 14. Guiding members or slides move in these guideways. Each guiding member comprises an upper and a lower part. The upper part is a plate 9 having a depending vertically bored foot 9 and a pair of upstanding lugs 9 received in aperture 7" in disk 7' of the carrier; the lower part includes a block 1" and a plate a subjacent thereto, the block having a roller 1" journaled at its upper side and inner end on a stud r (the roller. being engaged in the camway z"), and an aperture r under the bore 9 of thefoot The block and plate are secured to the depending foot of the upper part by screws 8. In a radial guideway 6 formed in and by the assembled block r and plate a is arranged a .slide w; the slide in each guiding member constitutes one of the aforesaid shaping members, and to this end has journaled in its inner end a knurl w. Each slide w has an upstanding pin between which and the end of a bore 7- in the block 1' is inter posed a spring a, housed in said bore, which tends to press the slide radially outwardly. The back of each slide is chamfered downwardly and outwardly and in wiping contact therewith is the correspondingly chamfered face of a' cam device y which is screwed onto the lower end of a, threaded thrust-pin a, said cam device occupying the aperture 7 in block 1" and the thrust-pin extending up through the bore of the upper part 9 of the guiding member and being normally held elevated by a spring 2 interposed between a suitable shoulder 2 0n the thrust-pin and a plate 3 at the bottom of the bore 1'.

lVhen the carrier is in rotation the guiding' members are caused by the camway z" to move inward and outward radially in the carrier, each thus describing a course which more or less conforms to the contour of the work; the independent movement of each slideor shaping member in the correspondingguiding member, whereby it is brought against the work, then held in contact therewith for the forming of the seam, and then withdrawn, is performed through the fol.- lowing means: In the lugs g of the upper part 9' of each guiding member is fulcrumed, on an axis transverse to that of the carrier, a lever 4, the ends of the two levers being bent around opposite sides of the hub k of the carrier and equipped with antii'riction rolls 5. These levers, between their ends, rest on the thrust-pins 2. The roll of one lever is set radially outward of the carrier farther than the other (Figure Resting on the respective rolls are the under horizontal surfacesot a pair of telescoped annular heads 6 and 7 of plunger-s or abutments each having a stem 8 screwed fast therein and guided vertically in a suitable lateral pro ection Z) of the head I). These stems have collars 8 connected by links 8 to the free ends of levers 9 fulcrumed in head I) on a horizontal axis; springs 8 between the collars and projections 6 normally hold the plungers elevated. The construction shown in Figures 14 and is in all respects the same as that already described excepting that the levers l for-transmitting movement from the plungers just described to the thrust-pins z and consequently to the shaping members are fulcrumed in lugs 10 on the carrier, each lever having a roll to receive the thrust of the corresponding plunger and also a ball and socket connection 11 with the corresponding thrustpin.

When chuck '23 is to be changed for another it is only necessary to remove the lower part 1-% of each guiding member with the contained shaping member to permit removal of the chuck after detaching its hold ing screw it.

, The drive-shaft 12, suitably journaled in the head, has a bevel pinion 13 (Figure 3) in Ineshwith the'bevel gear 11 of the carrier. Freely revoluble on said shaft is'a driving pulley 14 and'splined on it is a cone-shapedclutch member 15which coacts with the conical interior of thepulley as a clutch when shifted toward said pulley and with the conical interior of a projection 16 of head 6 as a brake when shifted toward the head. There is a lever 17 fulcrumed in upright a for shifting the clutch member 15, and this lever is moved to shift the clutch member toward the pulley by depressing a treadle lever 18 against the tension of a return spring 17 and so bringing a toe 19 on the treadle lever against a roll 20 on lever 17, lever 17 being moved in the opposite direction (to force the clutch member against braking surface 16) when the treadle lever is released by a spring 21 connecting studs 17 and 17 of the twolevers.

Lever 17 may be dogged and held in position to retain the clutchengaged with the by a hand lever 22 notched at its end for the reception of the roll 23 on. lever 17 against which it wipes. When the treadle lever is depressed it acts through a link 24 to rock a lever 25 fulcrumed in upright 71 and having a cam 26 to cam up the work; support for the clamping of the work between the latter and the chuck head i cam 26 bearing against a roll (1 on said Worksupport. v

The shaping members are caused to move into and out of contact with the work through mechanism which (the drive shaft and consequently the carrier being in rotation) is thrown into action at thewill of. the operator but goes out of action automatically, to wit, when the shaping means has progressed around andin contact with the work to an extent or the number of times requisite for the purpose in hand. A worm 27 is journaled in head I) parallel with shaft 12 and above the same and is driven therefrom through gearing 28 (Figure 3). The worm meshes with a worm-wheel 29 having lateral hubs 29 journaled in bearings formed by the top of head I) and a cap 30 (removed in Figure 13, but shown in Figure 1). One hub has projecting pins 29", The part 29-29 is penetrated by a revoluble shaft 31 having cams 32 fixed on its ends and on one end a latch block 33 in which, penetrating the adjoining cam, is thrustwise movable into and out of engagement with the pins 29" a latch 34, spring-held inwardly. The rotary ;member including the worm wheel and that including the shaft and cams'have thus a disconnective clutch connection between them. The latch, that is to say, the clutch connection, is controlled bya bell-crank lever 35 fulcrumed in head I) and having its upper end beveled, at 35,

Figure 13, so that when the lever occupies.

its normal position (Figure 1) its bevel will underlie the end of the latch which, when it moves around (see the arrow, Figure 1),

will be c'ammed back, disestablishing the clutch, wherefore the member including the cams will stop while that including theworm-wheel will continue rotating. levers.9 have suitable rolls which bear on the peripheries of the cams 32 and the cams,

which are suitably shaped to cause the levers during one cycle of the cams to bringthe corresponding shaping means into action at the pro er times, have recesses 32" therein in which the rolls fallwhen the clutch con-. nection is disestablished to insure non-rotation of thecam-including member at this time. Lever 35 is held inits mentioned normal position by a spring36. Its free arm has a toe 37 adapted to be dogged bya hook 38 on a hook-bar 39 when the latter is drawn The downward by the treadle lever 18, to which it is pivotally connected; the hook bar is normally held bearing against the toe by a spring 40, but when it shifts lever 35 a heel 35" thereon forces it away and so said lever 35 is tripped and resumes its normal position.

Operation: If lever 2210c made to dog lever 17, then so long as it remains so, since the clutchmonnection between shaft 12 and pulley 15 then remains established, the carrier will continue rotating, the guiding mem bers'being caused by the camway i to travel in. a course conforming to the contour of the work. The operator then has only to depress the treadle lever 18 each time a seaming operation is to be performed. Depressing the treadle elevates the work in the way explained and shifts lever 35 so that the latch 34 being freed the cams 32 are set rotating and through levers 9 and the described means for transmitting motion to the slides w therefrom, the knurls w are forced against the work as they are moved around the same; since the lever is tripped from engagement with the hook bar and resumes its normal position upon its clearing the latch it will automatically cam back the latch and disestablish the clutch connection between the worm-wheel-including and cam-including member when the latter has completed one revolution, so that, while the carrier continues to rotate so long as shaft 12 remains clutched with the pulley, the shaping member will not again go into action until the treadle is again depressed. When the rolls on levers 9 fall into the recesses 32 of the cams the attendant releases the pressure on the treadle lever to withdraw the work, the recesses insuring ample withdrawal of the shaping devices from the Work for this purpose.

lf lever 22 be set clear of lever 17 then a depression of the treadle lever not only elevates the work support andsets the shaping members in operation but primarily establishes the clutch connection between the pulley and driving shaft 12; the, driving shaft is in this case set rotating each time a seaming operation is to be performed and when the treadle is released following each such operation the shaft is brought to a stop by the coaction of clutch member 15 and the brake device.16.

The cams 32 are not counterparts of each other. The seaming knurls are shaped according to a well-known form shown in Figure 16 so that the one at the top irf that figure will first curl overt-he edges of the metal and then the other will flatten the N curl, as indicated in that figure. If both shaping members were moved inward together the same distance and then withdrawn together (i. e., due. to the cams being identical) it is obvious that the edge to of the first-operation or curling knurl would cut into the flattened seam produced by the other or second-operation knurL. Wherefore the cams are formed, Figure 17, so that on the second operation knurl being forced by its cam against the work the first-operation knurl will be allowed by its cam to withdraw.

Instead of the movements of the two shaping members being thus made dependent on independent prime movers '.(d1ii'erently shaped cam-surfaces), I may use one pr me mover and provide for the first-operat on member being prevented from movement nward further than is necessary, to do its work of curling the edges while leaving the second-operation member free at the proper time to be forced inward relatively beyond the point where the first-operation member is checked, as shown in Figures 18 to 23. One plunger will serve in this case, it being understood that its stems 42 are con nected to levers (not shown) whose rolls ,bear on counterpart cams 32' one of which is shown in Figure 23 and which correspond to cams 32. The head 41 oft-his plunger is adapted to bear down against rolls 43 of levers 44, 45 which form parts of a mechanism substantially the same as that first described herein (Figures 1 to 13),

excepting as follows: In a dove-tailed vertical groove 46 at the inner side of lever 45 moves a block 47 which carries the roll 43 for this lever and is normally held elevated to the limit afi'orded by its contact with an overhang 45 on the lever by springs 49; these springs are interposed between the upper closed ends of sockets 50 in the block and the heads of screws 51 which penetrate the springs, block and overhang and are suspended from the latter by their nuts 58. A slip-grip is normally maintained between the block and lever by a pin54 in the latter having a tapered end 54' engaging in a tapered socket 54 in the former, the pin being held engaged in the socket by a platespring 55 fixed to the lever. A plate-spring 56 is fixed to disk j and tends to hold elevated the lever 45, acting against a roll 45 thereon; this roll is used to reduce the friction that would otherwise occur between the lever and spring 56 when the lever moves radially with the guiding member in Which the shaping member slides. Under the free end of the spring 56 and beneath roller 45 is a hump 58 on disk 7'. Each time the cams are started rotating they first depress the plunger and consequently both levers but only sufliciently to move inward the first-operation shaping member to form the v curl; when that has been accomplished the cams impart another impulse to the plunger, which forces the second-operation shaping member against the work to flatten the curl and finish the seam, but which is ineffective .to move the first-operation member further because lever 45 is checked by hump 58,the yielding'or slip-grip connection between the lever and block breaking down and allowing the block to descend idly; in fact, upon the collapse of the slipgrip connection spring 56 will coact with springs 2 to withdraw the. first-operation shaping means from the work, overcoming springs 49. When the cams complete the rotation and the plunger rises the several springs will obviously return the lever 45 and block to their normal position, leaving then again interlocked by the slip-grip connection. The problem being, essentially, to check the shaping means in its inward movement, after it has more or less modified the shape of the work, so that it can 'efiect no further change in the work, this part of my invention has for its essential features a shaping system of. parts containing a collapsibleconnection (as at 54-54 yieldable only to resistance greater than that opposed by the work, and means to oppose such resistance, as stop 58, arranged in the path of movement of said system relatively toward the work.

Having thus fully described my invention, what I claim as new and desire to secure by, tters Patent is:-

1 In a machine for shaping circumferentially non-circular articles of sheet material, the combination, with work-holding means and mechanism to operate on the work in cluding a carrier member, a guiding member shiftable substantially rectilineally in .said member and substantially radially with respect to an axis extending through the work, a work-shaping member shiftable rectilineally in the guiding member and also substantially radially with respect to said axis, and lever-including means for transmitting movement to the shaping member, of a plunger for actuating the leverincluding means movable longitudinally of said axis, means for effecting rotation around said axis as between the work-holdmg means and the plunger on the one hand and said mechanism on the other, and shift: ing means for the guiding member preserving the same in constant relation to the work during such rotation.

2. In a machine for shaping circumferentially non-circular articles of sheet material, the combination. with work-holding means and mechanism to operate on the work including a. carrier member. a guiding member shiftable substantially rectilineally in said member and substantially radially with respect to anaxis extending through the work, a work-shaping member shiftable rectilineally in the guiding member and also radially with respect to said axis, and means for transmitting movement to the shaping means including a lever fulcrlnned first axis, of a plunger for actuating the lever-includin means movable lon 'tudinally of the rst axis, means for e ecting rotation around the first axis as between the Work-holding means and plunger on the one hand and said mechanism on the other, and shifting means for the guiding member preservin the same in constant relation to the work uring such rotation.

3. In combination, a frame, work-holding means therein, a work-shaping member, supporting means for said member, one of said means being rotative relatively to the other on an axis extending through the work, rotary driving means to rotate the rotaryvone of said means journaled on an axis substantially radial of the first axis, actuating means journaled on an axis traversing the first and second axes and ararranged in a plane substantially parallel to the first axis and geared with the driving means, and-means to transmit movement from the actuating means to said work-shaping member.

4. In combination, a frame, work-holdingmeans therein, work-shaping members arranged to engage the work at substantially opposite points thereof, supporting means for said members, one of said means being rotative relatively to the other on an axis extending through the work, rotary driving means to rotate. the rotary one of the first two means journaled on an-axis substantially radialof the first axis, rotary actuating means journaled on an axis traversing the first and second axes and arranged in a plane substantially parallel with the first axis and geared with the driving means, and means, arranged on opposite sides of the first axis, to transmit movement from the actuating means to said work-shaping members.

5. In combination, a frame, work-holding means therein, a work-shaping member, supporting means for said member, one of said means being rotative relatively to the other on an axis extending through the work, means to rotate the rotary one of said means, and means to actuate said member includ in a back-and-forth-movable plunger movab e longitudinally of said axis, means to move said plunger in one direction, and a spring interposed between the plunger and eing rotative relatively to the other and geared with the driving means, means to transmit movement from the actuating means to said work-shapingmember including a lever fulcrumed in the-frame and operatively' engaging the actuating means and connected to the plunger and a spring opposing movement of the plunger 1n 'one direction.

7. In combination a. frame, work-holding means therein, a wor -shaping member supporting means for said member, one of said means being rotative relatively to the other, rotary driving means to rotate the rotary one of the first two means, a rotary motion transmitting means operatively connecting the driving means and said member and having a disconnective but normally connected clutch-connection, a controller member normally positioned to disconnect said clutch-connection at a definite point in its cycle, and an actuatin member for the con troller'member movab le in a definite direction into actuating engagement therewith, said actuating and controller members being coactive to disengage one from the other during the movement of the actuatingmemher in said direction.

8. In combination, work-holding means and carrier means, a work-shaping mechanism movable in the carrier means, means to force said mechanism against the work, said mechanism containing a collapsible connec tion yieldable only to resistance greater than that opposed by the work, and means to oppose such resistance arranged in the path of said mechanism relatively toward the work.

9. In combination, work-holding means and carrier means, a work-shaping mechanism movable in the carrier means, means to force said mechanism againstthe work, said mechanism containing a collapsible connection yieldable only to resistance greater than that opposed by the work, means to oppose such resistance arranged in the path of said mechanism relatively toward the work, and

tacting portion of said mechanism awayfrom the work upon yielding of said connection. v

10. In combination, a frame, work-holding means and carrier means therein one of which is rotative relatively. to the; other around the axis of the work, a work-shaping mechanism movable in the carrier means, an abutment for moving said mechanism against the work, the carrier and: abutment being movable one relatively to the other longitudinally of said axis to cause such movement. lof said mechanism, said mechanism containinga collapsible connectionyieldable only to resistance greater than that opposed by the work,andmeans to oppose such resistance arranged in the path of and a work-contacting portion and also a said mechanism relatively toward the Work. slip-grip connection between said portions, 10

11. In combination, W0rk-h01ding means said means tooppose resistance to the moveand carrier means, a work-shaping mechment of the work-contacting portion toward 5 anism movable in the carrier means, means the work sufiicient to overcome said slip-grip to force said mechanism against the Work, connection.

said mechanism including a portion adapted In testimony whereof I aflix my signature 15 to receive the thrust of the last-named means AMOS CALLESON. 

